NEW YORK (CBSNewYork/AP) – Presumptive Republican vice presidential nominee Donald Trump has postponed the announcement of his running mate in the wake of an attack in France Thursday night.

Trump tweeted the Thursday evening that the announcement will not take place on Friday as planned.

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Earlier Thursday, CBS News reported that Trump had tapped Indiana Gov. Mike Pence as his running mate. Pence was on a plane headed for Teterboro, New Jersey late Thursday, CBS2’s Dick Brennan reported.

At least 60 people were killed in the attack in Nice, France when a truck plowed into a crowd that was celebrating Bastille Day, according to Eric Ciotti, the president of the Nice region.

The truck’s driver drove on to the sidewalk and plowed through a crowd of revelers who had gathered to watch fireworks in the French resort city.

Sylvie Toffin, a press officer with the local prefecture, said the truck “hit several people on a long trip” down the sidewalk near Nice’s Palais de la Mediterranee, a building which fronts the beach.
Toffin confirmed the incident was deliberate.

“It’s an attack,” she said.

Nice’s Mayor Christian Estrosi tweeted that dozens are dead and asked people to stay inside their homes.

Estrosi told The Associated Press the truck was armed with guns and grenades.

Trump also issued a tweet condemning the attack.